1 /* 2 * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package sun.jvm.hotspot.utilities.soql; 25 26 import java.util.Map; 27 import java.util.HashMap; 28 import java.util.Collections; 29 import java.lang.reflect.Method; 30 import java.lang.reflect.Constructor; 31 import javax.script.Invocable; 32 33 /** 34 * Simple implementation of ScriptObject interface 35 * with property storage backed by a Map. This class 36 * can be extended to override any of the methods, in 37 * particular to add "function" valued properties. 38 */ 39 public class MapScriptObject implements ScriptObject { 40 // map to store the properties 41 private Map map; 42 MapScriptObject()43 public MapScriptObject() { 44 this(new HashMap()); 45 } 46 MapScriptObject(Map map)47 public MapScriptObject(Map map) { 48 // make it synchronized 49 this.map = Collections.synchronizedMap(map); 50 } 51 getIds()52 public Object[] getIds() { 53 return map.keySet().toArray(); 54 } 55 get(String name)56 public Object get(String name) { 57 if (has(name)) { 58 return map.get(name); 59 } else { 60 return UNDEFINED; 61 } 62 } 63 get(int index)64 public Object get(int index) { 65 if (has(index)) { 66 Object key = Integer.valueOf(index); 67 return map.get(key); 68 } else { 69 return UNDEFINED; 70 } 71 } 72 put(String name, Object value)73 public void put(String name, Object value) { 74 map.put(name, value); 75 } 76 put(int index, Object value)77 public void put(int index, Object value) { 78 map.put(Integer.valueOf(index), value); 79 } 80 has(String name)81 public boolean has(String name) { 82 return map.containsKey(name); 83 } 84 has(int index)85 public boolean has(int index) { 86 return map.containsKey(Integer.valueOf(index)); 87 } 88 delete(String name)89 public boolean delete(String name) { 90 if (map.containsKey(name)) { 91 map.remove(name); 92 return true; 93 } else { 94 return false; 95 } 96 } 97 delete(int index)98 public boolean delete(int index) { 99 Object key = Integer.valueOf(index); 100 if (map.containsKey(key)) { 101 map.remove(key); 102 return true; 103 } else { 104 return false; 105 } 106 } 107 108 // add a function valued property that invokes given Method putFunction(Object target, Method method)109 protected void putFunction(Object target, Method method) { 110 putFunction(target, method, true); 111 } 112 113 // add a function valued property that invokes given Method putFunction(Object target, Method method, boolean wrapArgs)114 protected void putFunction(Object target, Method method, boolean wrapArgs) { 115 map.put(method.getName(), new MethodCallable(target, method, wrapArgs)); 116 } 117 118 // add a function valued property that invokes given script function putFunction(Object target, String name, Invocable invocable)119 protected void putFunction(Object target, String name, Invocable invocable) { 120 map.put(name, new InvocableCallable(target, name, invocable)); 121 } 122 } 123